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Related Concept Videos

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Updated: Aug 14, 2025

Transformation of Organic Household Leftovers into a Peat Substitute
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Improving the humification by additives during composting: A review.

Li Chen1, Yaoning Chen1, Yuanping Li2

  • 1College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.

Waste Management (New York, N.Y.)
|January 15, 2023
PubMed
Summary

Additives significantly enhance humification in composting, with compound additives showing the most promise for improving compost maturity and quality. Further research should focus on large-scale application feasibility.

Keywords:
AdditivesCompostingHumic substancesHumification

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Area of Science:

  • Environmental Science
  • Soil Science
  • Waste Management

Background:

  • Humic substances (HSs) are crucial indicators of compost maturity.
  • Additives are a promising strategy to accelerate humification in composting.

Purpose of the Study:

  • To review recent literature on additives that promote humification during composting.
  • To systematically discuss the effects and mechanisms of various additives on compost humification.

Main Methods:

  • Literature review of studies on additives in composting.
  • Categorization of additives into organic, inorganic, biological, and compound types.
  • Analysis of the quantitative impact of different additives on humification rates.

Main Results:

  • Inorganic, organic, biological, and compound additives promoted humification by 5.58-82.19%, 30.61-50.92%, 2.3-40%, and 28.09-104.51%, respectively.
  • Compound additives demonstrated the highest potential for promoting composting humification.
  • Advantages and disadvantages of each additive type were evaluated.

Conclusions:

  • Compound additives represent the most promising approach for enhancing composting humification.
  • Future research should address the long-term stability, environmental impact, and economic feasibility of additives for large-scale composting applications.